CN115140176A - Vehicle body side structure - Google Patents

Abstract

The invention provides a vehicle body side structure. The vehicle body side portion structure includes: edge beams provided at both ends of the floor portion in the vehicle width direction and extending in the vehicle front-rear direction; a pillar extending upward from the side member and having a pillar outer portion provided on an outer side in the vehicle width direction; a crush member provided on an inner side in a vehicle width direction with respect to the pillar outer portion, having a lower portion joined to the side member, and extending upward from the side member; and an impactor provided above the crush member, joined to the inside of the pillar outer in the vehicle width direction, and at least partially overlapping the crush member in the vertical direction.

Description

Vehicle body side structure

Technical Field

The present invention relates to a vehicle body side portion structure.

This application claims priority based on Japanese application No. 2021-057191, filed on 3/30/2021, and the contents of which are incorporated herein by reference.

Background

Various vehicle body side structures capable of absorbing a collision load generated by an external force have been proposed to protect passengers in a vehicle interior during a collision of a vehicle or the like. As such a vehicle body side portion structure, for example, there is a structure that can suppress intrusion of the center pillar into the vehicle interior due to a collision load input from a side of the vehicle.

For example, japanese patent application laid-open No. 2005-199749 discloses a configuration in which a middle portion is formed in a shape that is convexly curved outward in the vehicle width direction with respect to upper and lower end portions of a pillar, and a side collision input that acts substantially in a horizontal direction from an outward direction to an inward direction of a vehicle is converted into a vertical direction input and is continued. In such a configuration, the pillar is compressed and deformed in the vertical direction, thereby absorbing the collision load input from the side of the vehicle. The column includes vertical deformation allowing portions provided at the upper and lower end portions of the column and an intermediate deformation allowing portion provided at an intermediate portion in the vertical direction of the column, and the deformation strength of each deformation allowing portion is set to be smaller than the axial crushing strength of the other portion of the column. With such a configuration, it is desired to maintain the shape of the pillar, which is deformed inward in the vehicle width direction by a side collision input acting in a substantially horizontal direction from the outside toward the inside of the vehicle, in a substantially linear state at the initial stage of the collision.

Disclosure of Invention

However, in the structure disclosed in japanese patent application laid-open No. 2005-199749, a certain degree of deformation of the column is required before the column is compressively deformed to effectively absorb the collision load. That is, a case where the pillar enters the vehicle interior due to deformation of the pillar before the collision load is effectively absorbed is considered.

An object of an aspect of the present invention is to provide a vehicle body side portion structure that can effectively absorb a collision load while suppressing deformation of a pillar.

In order to achieve the above object, a vehicle body side portion structure according to an aspect of the present invention employs the following configuration.

(1) The scheme of the invention comprises: side members (e.g., side members 2 in the embodiment) provided at both vehicle width direction end portions of a floor portion (e.g., floor portion 11 in the embodiment) and extending in the vehicle front-rear direction; a pillar (e.g., a center pillar 4 in the embodiment) extending upward from the side member and having a pillar outer (e.g., a pillar outer 41 in the embodiment) provided on the vehicle width direction outer side; a crush member (e.g., crush member 51 in the embodiment) provided on the inner side in the vehicle width direction with respect to the pillar outer, having a lower portion joined to the side member, and extending upward from the side member; and an impactor (for example, the impactor 52 in the embodiment) that is provided above the crush member, that is joined to the vehicle width direction inner side of the pillar outer, and that at least partially overlaps the crush member in the vertical direction.

According to the aspect of the above (1), the crush member having the lower portion joined to the side member and the striker provided on the upper side of the crush member and joined to the vehicle width direction inner side of the pillar outer are connected so as to overlap at least a part in the vertical direction, and thus, when a collision load is input from the vehicle side, the striker is displaced so as to be tilted inward and downward in the vehicle width direction along with the deformation of the pillar. Thus, the portion of the crush member to which the striker is connected is pressed inward and downward in the vehicle width direction, and the crush member can be actively crushed. In this way, the energy generated by the collision load input to the pillar can be absorbed by the impactor effectively crushing the crush member. Therefore, the amount of deformation of the pillar can be suppressed. As a result, the deformation of the pillar is suppressed and the collision load can be effectively absorbed.

(2) In the aspect (1), the crushing member may include a lower inclined portion (for example, a lower inclined portion 51s in the embodiment) inclined upward from the outside toward the inside in the vehicle width direction, and the lower end portion of the impactor may include an upper inclined portion (for example, an upper inclined portion 52s in the embodiment) inclined upward from the outside toward the inside in the vehicle width direction and connected to the lower inclined portion.

According to the aspect (2), the upper inclined portion of the impactor and the lower inclined portion of the crushing member are inclined upward from the vehicle width direction outer side toward the inner side, respectively. Therefore, when a collision load is input from the side of the vehicle, if the striker that is displaced inward in the vehicle width direction together with the pillar is pressed, the striker is easily deformed so as to be tilted inward and downward in the vehicle width direction from the upper inclined portion as a starting point due to a reaction force that the upper inclined portion receives from the lower inclined portion. This allows the impactor to crush the crush member effectively. Therefore, the energy generated by the collision load input to the pillar can be absorbed more effectively, and the amount of deformation of the pillar can be suppressed effectively.

(3) In the aspect (1) or (2), the crushing member may include: a lower inner wall (e.g., a lower inner wall 51a in the embodiment) disposed at a distance inward in the vehicle width direction with respect to the pillar outer; a lower side wall (for example, a lower side wall 51b in the embodiment) that extends outward in the vehicle width direction from both sides in the vehicle front-rear direction of the lower inner wall, and that is joined to the pillar outer, the impactor including: an upper inner wall (e.g., an upper inner wall 52a in the embodiment) disposed at a spacing inward in the vehicle width direction with respect to the pillar outer; and an upper side wall (for example, an upper side wall 52b in the embodiment) that extends outward in the vehicle width direction from both sides in the vehicle front-rear direction of the upper inner wall and is joined to the pillar outer, wherein an upper portion of the lower inner wall and an upper portion of the lower side wall are joined to a lower portion of the upper inner wall and a lower portion of the upper side wall so as to overlap each other.

According to the means of the above (3), the upper portion of the lower inner wall and the upper portion of the lower side wall of the crush member and the lower portion of the upper inner wall and the lower portion of the upper side wall of the impactor are overlapped and joined to each other, whereby a firm closed cross section is formed between the crush member and the impactor, and the pillar outer member. Thus, when a collision load is input from the side of the vehicle, if the vehicle is pressed by the striker that is displaced inward in the vehicle width direction together with the pillar, the upper portion of the crush member is deformed so as to easily fall inward and downward in the vehicle width direction from the connecting portion between the crush member and the striker. Therefore, the crush member can be actively crushed by the impactor. As a result, energy generated by the collision load input to the pillar can be absorbed more effectively, and the amount of deformation of the pillar can be suppressed effectively.

(4) In any one of the above (1) to (3), the crushing member may integrally include: a lower flange (e.g., lower flange 51f in embodiments) that engages the side rail; a side flange (e.g., side flange 51g in the embodiment) that engages with the pillar outer at a position below a portion to which the impactor is connected.

According to the aspect (4) described above, the crush member includes the lower flange joined to the side member and the side flange joined to the pillar outer at a position below the portion connected to the striker. Thereby, a firm closed cross section is formed by the crush member, the side beam, and the pillar outer. Thus, when a collision load is input from the side of the vehicle, the lower portion of the crush member is suppressed from falling down when pressed by the striker that displaces inward in the vehicle width direction together with the pillar, and the upper portion of the crush member deforms so as to easily fall down inward in the vehicle width direction. Therefore, the energy generated by the collision load input to the pillar can be absorbed more effectively, and the amount of deformation of the pillar can be suppressed effectively.

(5) In the aspect (4), a connecting member (for example, a connecting member 55 in the embodiment) that is provided along a plane intersecting the vehicle longitudinal direction and connects the inner surface of the side sill and the lower flange of the crush member may be further provided inside the side sill.

According to the aspect (5), the lower portion of the crush member is firmly supported by the side member via the connecting member by connecting the connecting member provided inside the side member to the lower flange of the crush member. Thus, when a collision load is input from the side of the vehicle, the lower portion of the crush member is suppressed from falling down by being pressed by the striker that is displaced inward in the vehicle width direction together with the pillar, and the upper portion of the crush member is easily deformed so as to fall inward and downward in the vehicle width direction. Therefore, the energy generated by the collision load input to the pillar can be absorbed more effectively, and the amount of deformation of the pillar can be suppressed effectively.

(6) In the aspect (4) or (5) described above, the side frame may have a closed cross-sectional structure extending in the vehicle longitudinal direction, the crush member may be inserted into the side frame through an opening (e.g., opening 28 in the embodiment) provided in an upper surface of the side frame, the lower flange may be joined to an upward facing bottom surface (e.g., bottom surface 21d in the embodiment) of an inner surface of the side frame, and the side flange may be joined to an inner surface (e.g., inner surface 21s in the embodiment) of the inner surface of the side frame so as to extend over an inner side surface facing inward in the vehicle width direction and an inner surface of the pillar outer.

According to the aspect (6), the crush member is inserted into the side member through the opening of the side member, and the lower flange and the side flange are joined to each other across the bottom surface of the side member, the inner surface of the side member, and the pillar outer, whereby the lower portion of the crush member can be firmly supported by the side member. Thus, when a collision load is input from the side of the vehicle, the lower portion of the crush member is suppressed from falling when pressed by the striker that displaces inward in the vehicle width direction together with the pillar, and the upper portion of the crush member deforms so as to easily fall inward and downward in the vehicle width direction. Therefore, the energy generated by the collision load input to the pillar can be absorbed more effectively, and the amount of deformation of the pillar can be suppressed effectively.

(7) In any one of the above (1) to (6), the vehicle body side structure may further include door beams (e.g., a front door beam 65 and a rear door beam 75 in the embodiment) provided to door openings (e.g., a front door 61 and a rear door 71 in the embodiment) formed in at least one of the vehicle front-rear direction with respect to the pillar so as to be openable and closable (e.g., a front door opening 6 and a rear door opening 7 in the embodiment), the door beams being provided so as to straddle the door openings in the vehicle front-rear direction in a state where the door openings are closed, and beam ends (e.g., beam ends 65e and 75e in the embodiment) of the door beams in the vehicle front-rear direction being arranged at positions overlapping the striker in the vertical direction.

According to the aspect of (7) above, since the striker and the pillar-side end portion of the door beam are disposed at positions that overlap in the vertical direction, the force transmitted from the door side to the pillar can be efficiently transmitted to the striker when the collision load from the side of the vehicle is input. Therefore, the crushing member can be actively crushed by the impactor. This enables energy generated by the collision load input to the pillar to be absorbed more effectively, and the amount of deformation of the pillar to be suppressed effectively.

(8) In any of the above (1) to (7), two sets of the striker and the crush member may be disposed at an interval in the vehicle front-rear direction, and a webbing take-up device (for example, a take-up device 100 in the embodiment) may be disposed between the two sets.

According to the aspect of (8) above, the crush member is crushed by the impactor by the force input from the door side of the pillar in the vehicle front-rear direction. Thus, the influence of the collision load can be suppressed from being exerted on the winding device disposed between the two sets of the striker and the crush member disposed at a distance from each other in the vehicle longitudinal direction.

(9) In any one of the above (1) to (8), the impactor may have a higher rigidity than the crushing member.

According to the aspect (9), when the collision load from the side of the vehicle is input, the impact tool having high rigidity can crush the crush member efficiently. This enables energy generated by the collision load input to the pillar to be absorbed more effectively, and the amount of deformation of the pillar to be suppressed effectively.

(10) In the aspect (9) above, the impactor may be formed of a material having a plate thickness greater than that of the crushing member.

According to the aspect (10), the striker is formed of a material having a plate thickness larger than that of the crush member, and thus has higher rigidity than the crush member. Thus, when a collision load is input from the side of the vehicle, the impact tool having high rigidity can crush the crush member effectively. This enables energy generated by the collision load input to the pillar to be absorbed more effectively, and the amount of deformation of the pillar to be suppressed effectively.

According to the aspect of the present invention, it is possible to effectively absorb the collision load while suppressing deformation of the pillar.

Drawings

Fig. 1 is a view of a vehicle body side portion structure as viewed from the inside in the vehicle width direction.

Fig. 2 is an enlarged view showing a main portion of fig. 1.

FIG. 3 is a perspective view of an opening in an outer panel of the rocker.

Fig. 4 is a perspective view showing a crushing member and an impactor provided in a vehicle body side portion structure.

Fig. 5 is a perspective view showing the crushing member and the impactor.

Fig. 6 is a perspective view showing a state in which the crush member is deformed by an impact load from the side of the vehicle body.

Fig. 7 is a perspective view showing a modification of the vehicle body side portion structure.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the directions such as front, rear, up, down, left, and right are the same as those in the traveling of the vehicle unless otherwise specified.

Fig. 1 is a view of a vehicle body side portion structure 1 as viewed from the inside in the vehicle width direction.

As shown in fig. 1, the vehicle body side portion structure 1 mainly includes a side member 2, a front pillar 3, a center pillar 4, and a crush portion 5.

Fig. 2 is an enlarged view showing a main part of fig. 1. Fig. 3 is a perspective view showing an opening shown in the side sill outer 21 of the side sill 2. Fig. 4 is a perspective view showing the crushing member 51 and the striker 52 provided in the vehicle side portion structure 1.

The side members 2 are provided at both ends in the vehicle width direction of the floor portion 11 of the vehicle lower portion. The side member 2 constitutes a closed cross-sectional structure extending in the vehicle front-rear direction. As shown in fig. 2 to 4, the side sill 2 includes a side sill outer panel 21 and a side sill inner panel 22. The side sill outer panel 21 is formed in a hat shape in cross section having an upper flange 21a and a lower flange 21b (see fig. 4). The rocker inner panel 22 is formed in a hat-shaped cross section having an upper flange 22a and a lower flange 22 b. The rocker outer panel 21 and the rocker inner panel 22 are formed into a closed cross section by joining the upper flanges 21a, 22a to each other and joining the lower flanges 21b, 22b to each other, respectively. The side member 2 is a highly rigid member that forms a vehicle body frame at the side of the vehicle body lower portion.

As shown in fig. 1, the front pillar 3 extends upward from the front end of the side member 2. The center pillar 4 extends upward from the center portion of the side member 2 in the vehicle longitudinal direction. Further, a side pillar (not shown) extends upward from the rear end of the side member 2. A roof side rail (not shown) extending in the vehicle longitudinal direction is fixed to an upper end portion of the front pillar 3, an upper end portion of the center pillar 4, and an upper end portion of a side pillar (not shown).

The side member 2, the front pillar 3, the center pillar 4, the side pillar (not shown), the roof side rail (not shown), and the like are covered with a side panel outer (not shown) from the outside in the vehicle width direction. The outer side panel member is a panel that forms a design surface on the outer side in the vehicle width direction.

The center pillar 4 includes a pillar outer 41 and a pillar inner (not shown). The pillar outer 41 is provided on the vehicle width direction outer side of the center pillar 4. The pillar outer 41 is erected from the vehicle longitudinal direction center of the side member 2 to the roof side rail (not shown) on the outer side in the vehicle width direction. The pillar outer 41 has an outer side wall 43 disposed on the vehicle width direction outer side, an outer front flange 44 bent from the front edge of the outer side wall 43 toward the vehicle width direction inner side, and an outer rear flange 45 bent from the rear edge of the outer side wall 43 toward the vehicle width direction inner side.

A pillar inner (not shown) is provided on the vehicle width direction inner side of the center pillar 4. The pillar inner (not shown) is provided so as to cover the pillar outer 41 from the vehicle width direction inner side. The outer front flange 44 and the outer rear flange 45 of the pillar outer 41, the inner front flange (not shown) and the inner rear flange (not shown) of the pillar inner (not shown) are joined by spot welding, for example. Thereby, the center pillar 4 is formed as a closed cross section extending in the vertical direction.

A front door opening 6 is defined in front of the center pillar 4 by surrounding the side member 2, the front pillar 3, the center pillar 4, and a roof side member (not shown). The front door 61 is provided in the front door opening 6 so as to be openable and closable. The front door 61 is rotatably connected to the front pillar 3 via a hinge (not shown).

The rear door opening 7 is defined by the side sill 2, the center pillar 4, a side pillar (not shown) and a roof side rail (not shown) at the rear of the center pillar 4. The rear door 71 is openably and closably provided in the rear door opening 7. The rear door 71 is rotatably connected to the center pillar 4 via a hinge (not shown).

As shown in fig. 2 and 4, the crushed portions 5 are provided in the cross section of the center pillar 4 (inside the center pillar 4). In the present embodiment, the crushing section 5 includes a front crushing section 5A provided on the front side and a rear crushing section 5B provided on the rear side in the center pillar 4. The front side crushing section 5A and the rear side crushing section 5B are provided with crushing members 51 and an impactor 52, respectively. In the present embodiment, two sets of the crushing members 51 and the impactors 52 are provided at intervals in the vehicle longitudinal direction.

Fig. 5 is a perspective view showing the crushing member 51 and the impactor 52. In fig. 5, the crushing members 51 and the impactor 52 are simplified so that the front crushing portion 5A and the rear crushing portion 5B can be collectively described.

As shown in fig. 4 and 5, the crush member 51 is provided on the vehicle width direction inner side with respect to the pillar outer 41. The lower portion of the crush member 51 is engaged with the side member 2. The upper portion of the crush member 51 extends above the side member 2. The crushing member 51 integrally includes a lower inner wall 51a, a pair of lower side walls 51b, a lower inclined portion 51s, a lower flange 51f, and a side flange 51g.

The lower inner wall 51a is disposed at a spacing inward in the vehicle width direction with respect to the outer side wall 43 of the pillar outer 41. The pair of lower side walls 51b extend outward in the vehicle width direction from both sides of the lower inner wall 51a in the vehicle front-rear direction. The upper ends of the pair of lower side walls 51b are inclined upward from the outside toward the inside in the vehicle width direction. Thus, a lower inclined portion 51s that is inclined upward from the outside toward the inside in the vehicle width direction is formed at the upper portion of the crush member 51.

In the present embodiment, the lower portion of the crush member 51 is inserted into the side sill 2 (side sill outer 21) through an opening 28 formed in the upper surface of the side sill 2. The upper portion of the crush member 51 protrudes upward from the upper surface of the side member 2. The opening 28 may be formed in at least one of the rocker outer panel 21 and the rocker inner panel 22.

The lower flange 51f extends from the lower end of the crush member 51 so as to extend along the bottom surface 21d of the inner surface of the side sill 2 (side sill outer panel 21) toward the upper side. The lower flange 51f is joined to the bottom surface 21d of the side frame 2 by, for example, spot welding.

The side flanges 51g extend in the vertical direction along the pillar outer 41 from the vehicle width direction outer end portions of the pair of lower side walls 51 b. The side flanges 51g are joined, for example, by spot welding, while spanning the inner surface 21s of the inner surface of the side sill 2 (side sill outer 21) facing the vehicle width direction inner side and the inner surface of the pillar outer 41 (outer side wall 43) in the vertical direction.

In this way, the crushing member 51 has a closed cross section extending in the vertical direction and opening only upward at a position below the lower inclined portion 51s, via the lower inner wall 51a, the pair of lower side walls 51b, the pillar outer 41, and the bottom surface 21d of the side sill 2.

The impactor 52 is provided above the crushing member 51. The impactor 52 engages the inner side surface of the column outer member 41. The impactor 52 integrally includes an upper inner wall 52a, a pair of upper side walls 52b, an upper inclined portion 52s, and an upper flange 52f.

The upper inner wall 52a is disposed at a spacing in the vehicle front-rear direction on the vehicle width direction inner side with respect to the pillar outer 41. The pair of upper side walls 52b extend outward in the vehicle width direction from the vehicle front-rear direction both side ends of the upper inner wall 52 a. The upper flange 52f extends vertically along the pillar outer 41 from the vehicle width direction outer end portions of the pair of upper side walls 52 b. The upper flange 52f is joined to the inner surface of the pillar outer 41 by, for example, spot welding. In the front side crushed portion 5A, the upper side flange 52f positioned on the rear side of the upper side flanges 52f is joined to the inner surface of the outer side wall 43 of the pillar outer 41, and the upper side flange 52f positioned on the front side is joined to the inner surface of the outer front flange 44. On the other hand, in the rear crushing section 5B, the upper flange 52f located on the front side of the upper flanges 52f is joined to the inner surface of the outer side wall 43 of the pillar outer 41, and the upper flange 52f located on the rear side is joined to the inner surface of the outer rear flange 45.

The lower ends of the pair of upper side walls 52b are inclined upward from the vehicle width direction outer side toward the vehicle width direction inner side. Thus, an upper inclined portion 52s that is inclined upward from the outside toward the inside in the vehicle width direction is formed at the lower portion of the striker 52. The portion surrounded by the lower ends of the upper inclined portion 52s and the upper inner wall 52a is closed by the upper inclined plate 52 p. Thereby, the lower end of the impactor 52 is closed by the upper inclined plate 52p, and thus is formed more firmly.

The upper inclined portion 52s of the impactor 52 is inserted inside the lower inclined portion 51s of the crushing member 51. Thereby, at least a part of the impactor 52 overlaps the crushing member 51 in the vertical direction. The upper inclined portion 52s and the lower inclined portion 51s are joined to each other by, for example, spot welding. Specifically, the lower portion of the lower inner wall 51a and the upper portion of the lower side wall 51b are joined to the lower portion of the upper inner wall 52a and the lower portion of the upper side wall 52b in a state of overlapping with each other. The crushing member 51 and the impactor 52 may be connected by bolts or the like.

The crushing member 51 and the impactor 52 are formed into predetermined shapes by press working a metal plate material. In the present embodiment, the thickness of the metal plate material forming the impactor 52 is larger than the thickness of the metal plate material forming the crushing member 51. Thus, the impactor 52 has higher strength and rigidity than the crushing member 51. The impactor 52 may have higher strength and rigidity than the crushing member 51 by a method other than the plate thickness.

In the present embodiment, the crushing members 51 and the impactors 52 of the front crushing section 5A have a larger dimension in the vehicle longitudinal direction than the crushing members 51 and the impactors 52 of the rear crushing section 5B.

As shown in fig. 2, a webbing take-up device 100 (so-called ELR) is disposed between the front side crushing section 5A and the rear side crushing section 5B. The winding device 100 includes an anchor member 101 and a winding device body 102. The anchor member 101 is attached to the side member 2 by welding between the front side crushed portion 5A and the rear side crushed portion 5B. The winding device main body 102 is attached to the side member 2 at the anchor member 101 via an anchor pin 103.

As shown in fig. 1, the front door 61 is openably and closably provided in a front door opening 6 formed on the front side with respect to the center pillar 4, and the front door 61 includes a front door beam 65 provided so as to extend across the front door opening 6 in the vehicle front-rear direction. The front door beam 65 is provided so as to straddle the front door opening 6 in a state where the front door opening 6 is closed by the front door 61. On the front side of the center pillar 4, the beam end 65e of the front door beam 65 is disposed at a position overlapping the striker 52 in the vertical direction.

Further, on the rear side of the center pillar 4, a beam end 75e of the rear door beam 75 provided so as to straddle the rear door opening 7 is also disposed at a position overlapping the striker 52 in the vertical direction. The beam ends 65e and 75e may be at least partially overlapped with the impactor 52 in the vertical direction.

Fig. 6 is a perspective view showing a state in which the crush member 51 is deformed by an impact load from the side of the vehicle body.

As shown in fig. 6, when a force F1 generated by a collision load from the side of the vehicle is input to the crush portion 5, the center pillar 4 is deformed so as to be pushed inward in the vehicle width direction. Then, the entire striker 52 is tilted inward and downward in the vehicle width direction in accordance with the deformation of the center pillar 4. Thereby, a force F2 acts to press the lower inclined portion 51s downward from the upper inclined portion 52s of the impactor 52. By this force F2, the portion of the crush member 51 to which the impactor 52 is connected is pressed inward and downward in the vehicle width direction, and the upper portion of the crush member 51 is crushed. In this way, the energy generated by the collision load input to the center pillar 4 is absorbed by the striker 52 effectively crushing the crush member 51.

As described above, in the present embodiment, the vehicle body side portion structure 1 includes: side members 2 provided at both ends in the vehicle width direction of the floor portion 11 and extending in the vehicle front-rear direction; a center pillar 4 extending upward from the side member 2 and having a pillar outer 41 provided on the vehicle width direction outer side; a crush member 51 provided on the vehicle width direction inner side with respect to the pillar outer 41, having a lower portion joined to the side member 2, and extending upward from the side member 2; and a striker 52 that is provided above the crush member 51, that is joined to the vehicle width direction inner side of the pillar outer 41, and that at least partially overlaps the crush member 51 in the vertical direction.

According to this configuration, when a collision load is input from the side of the vehicle, the striker 52 is tilted inward and downward in the vehicle width direction in accordance with the deformation of the center pillar 4. Thus, the portion of the crush member 51 to which the striker 52 is connected is pressed inward and downward in the vehicle width direction, and the crush member 51 can be actively crushed. In this way, the energy generated by the collision load input to the center pillar 4 can be absorbed by the striker 52 effectively crushing the crush member 51. Therefore, the amount of deformation of the center pillar 4 can be suppressed. As a result, the deformation of the center pillar 4 is suppressed, and the collision load can be effectively absorbed.

In the present embodiment, the crushing member 51 includes a lower inclined portion 51s inclined upward from the outside toward the inside in the vehicle width direction, and the lower end portion of the impactor 52 includes an upper inclined portion 52s inclined upward from the outside toward the inside in the vehicle width direction and connected to the lower inclined portion 51s.

According to this configuration, the upper inclined portion 52s of the impactor 52 and the lower inclined portion 51s of the crushing member 51 are inclined upward from the outside toward the inside in the vehicle width direction, respectively. Therefore, when a collision load is input from the side of the vehicle, if the striker 52, which is displaced inward in the vehicle width direction together with the pillar 4, is pressed, the striker 52 is easily deformed so as to be tilted inward and downward in the vehicle width direction from the upper inclined portion 52s due to the reaction force received by the upper inclined portion 52s from the lower inclined portion 51s. This allows the impactor 52 to effectively crush the crush member 51. Therefore, energy generated by the collision load input to the center pillar 4 can be absorbed more effectively, and the amount of deformation of the center pillar 4 can be suppressed effectively.

In the present embodiment, the crush member 51 includes a lower inner wall 51a disposed at a distance from the pillar outer 41 on the vehicle width direction inner side, and a lower side wall 51b extending from both vehicle front-rear direction sides of the lower inner wall 51a to the vehicle width direction outer side and joined to the pillar outer 41, the impactor 52 includes an upper inner wall 52a disposed at a distance from the pillar outer 41 on the vehicle width direction inner side, and an upper side wall 52b extending from both vehicle front-rear direction sides of the upper inner wall 52a to the vehicle width direction outer side and joined to the pillar outer 41, and the upper portion of the lower inner wall 51a and the upper portion of the lower side wall 51b are joined to the lower portion of the upper inner wall 52a and the lower portion of the upper side wall 52b in a state of overlapping with each other.

According to this configuration, the upper portion of the lower inner wall 51a and the upper portion of the lower side wall 51b of the crushing member 51 and the lower portion of the upper inner wall 52a and the lower portion of the upper side wall 52b of the striker 52 are overlapped and joined to each other, whereby a strong closed cross section is formed between the crushing member 51, the striker 52, and the column outer 41. Thus, when a collision load is input from the side of the vehicle, the striker 52 is deformed so as to easily fall inward and downward in the vehicle width direction from the connecting portion between the crush member 51 and the striker 52. Therefore, the impactor 52 can crush the volume of the crush member 51 as much as possible. As a result, energy generated by the collision load input to the center pillar 4 can be absorbed more effectively, and the amount of deformation of the center pillar 4 can be suppressed effectively.

In the present embodiment, the crush member 51 is integrally provided with a lower flange 51f joined to the side member 2 and a side flange 51g connected to the pillar outer 41 at a position below a portion connected to the striker 52.

With this configuration, a firm closed cross section is formed by the crush members 51, the side frame 2, and the pillar outer 41. This suppresses the intrusion of the lower portion of the crush member 51, and the upper portion of the crush member 51 deforms to easily intrude inward and downward in the vehicle width direction from the connection portion between the crush member 51 and the striker 52. Therefore, the energy generated by the collision load input to the center pillar 4 can be absorbed more effectively, and the amount of deformation of the center pillar 4 can be suppressed effectively.

In the present embodiment, the crush member 51 is inserted into the side member 2 through the opening 28 provided in the upper surface of the side member 2, the lower flange 51f is joined to the bottom surface 21d of the side member 2, and the side flange 51g is joined to the pillar outer 41 across the inner surface 21s of the side member 2.

With this configuration, the lower portion of the crushing member 51 can be firmly supported by the side frame 2. Thus, when a collision load is input from the side of the vehicle, the lower portion of the crush member 51 is suppressed from falling, and the upper portion of the crush member 51 is easily deformed to fall inward and downward in the vehicle width direction. Therefore, energy generated by the collision load input to the center pillar 4 can be absorbed more effectively, and the amount of deformation of the center pillar 4 can be suppressed effectively.

In the present embodiment, the vehicle is further provided with a front door beam 65 and a rear door beam 75, the front door beam 65 and the rear door beam 75 are provided on the front door 61 and the rear door 71, the front door 61 and the rear door 71 are openably and closably provided on a front door opening 6 and a rear door opening 7 formed in at least one of the vehicle front-rear direction with respect to the center pillar 4, the front door beam 65 and the rear door beam 75 are provided so as to straddle the front door 61 and the rear door 71 in the vehicle front-rear direction in a state where the front door opening 6 and the rear door opening 7 are closed, and beam ends 65e and 75e of the front door beam 65 and the rear door beam 75 in the vehicle front-rear direction are arranged at positions overlapping the striker 52 in the vertical direction.

According to this configuration, the striker 52 and the end portions of the front door beam 65 and the rear door beam 75 on the center pillar 4 side are disposed at positions overlapping in the vertical direction, and therefore, when a collision load is input from the side of the vehicle, the force transmitted from the front door 61 and the rear door 71 side to the center pillar 4 can be efficiently transmitted to the striker 52. Therefore, the crushing member 51 can be actively crushed by the impactor 52. This enables energy generated by the collision load input to the center pillar 4 to be absorbed more effectively, and the amount of deformation of the center pillar 4 to be suppressed effectively.

In the present embodiment, two sets of the striker 52 and the crush member 51 are arranged at a distance in the vehicle front-rear direction, and the webbing take-up device 100 is arranged between the two sets of the striker 52 and the crush member 51.

With this configuration, the striker 52 crushes the crush member 51 by a force input from the front door 61 and the rear door 71 in the vehicle front-rear direction of the center pillar 4. This can suppress the influence of the collision load from being applied to the winding apparatus 100 disposed between the two sets of the striker 52 and the crush member 51 disposed at a distance from each other in the vehicle longitudinal direction.

In the present embodiment, the impactor 52 is configured to have a higher rigidity than the crushing member 51.

According to this configuration, when a collision load is input from the side of the vehicle, the impact tool 52 having high rigidity can crush the crush member 51 effectively. This enables energy generated by the collision load input to the center pillar 4 to be absorbed more effectively, and the amount of deformation of the center pillar 4 to be suppressed effectively.

In the present embodiment, the impactor 52 is formed of a material having a larger plate thickness than the crushing member 51.

According to this configuration, by forming the striker 52 with a material having a larger plate thickness than the crush member 51, the striker 52 has higher rigidity than the crush member 51. Thus, when a collision load is input from the side of the vehicle, the impact absorber 52 having high rigidity can crush the crush member 51 effectively. This enables energy generated by the collision load input to the center pillar 4 to be absorbed more effectively, and the amount of deformation of the center pillar 4 to be suppressed effectively.

[ modification of embodiment ]

In the vehicle side body structure 1 configured as described above, as shown in fig. 7, the side member 2 may further include a connecting member 55 inside thereof. The connecting member 55 has a box shape or a plate shape provided along a surface intersecting with the vehicle front-rear direction. The vehicle-widthwise inner end portion of the connecting member 55 is joined to the inner surface of the rocker 2 (rocker inner panel 22) by spot welding or the like. The end portion of the connecting member 55 on the outer side in the vehicle width direction is joined to the lower flange 51f of the crush member 51 by spot welding or the like. The connecting member 55 is also engaged with the lower inner wall 51a of the crushable member 51.

According to this configuration, the lower portion of the crush member 51 is firmly supported by the side member 2 via the connecting member 55 by connecting the connecting member 55 provided inside the side member 2 to the lower flange 51f of the crush member 51. Thus, when a collision load is input from the side of the vehicle, the lower portion of the crush member 51 can be suppressed from falling, and the upper portion of the crush member 51 is easily caused to fall inward and downward in the vehicle width direction by the displacement of the striker 52. Therefore, the energy generated by the collision load input to the center pillar 4 can be absorbed more effectively, and the amount of deformation of the center pillar 4 can be suppressed effectively.

[ other modifications ]

The preferred embodiments of the present invention have been described above, but the present invention is not limited to these embodiments. Additions, omissions, substitutions, and other changes in the structure can be made without departing from the spirit of the invention. The invention is not to be limited by the foregoing description but is only limited by the appended claims.

For example, in the above-described embodiment, the lower portion of the crush member 51 is inserted into the side member 2 through the opening 28 formed in the upper surface of the side member 2, but the present invention is not limited to this configuration. For example, the lower portion of the crush member 51 may be joined to the upper surface of the side sill 2.

In the above-described embodiment, the lower portion of the impactor 52 is inserted into the crushing member 51, but the present invention is not limited to this configuration. For example, the lower side wall 51b and a part of the upper side wall 52b may be connected to overlap in the vertical direction. The upper inclined plate 52p of the impactor 52 may be in contact with the upper portion (e.g., the lower inclined portion 51 s) of the crush member 51.

In the above-described embodiment, two sets of the crushing member 51 and the striker 52 are provided at a spacing in the vehicle body longitudinal direction, but the present invention is not limited to this configuration. The crushing members 51 and the impactors 52 may be provided in only one set or three or more sets.

In the above-described embodiment, the crushing member 51 and the striker 52 are provided on the center pillar 4, but the crushing member is not limited to the center pillar 4 and may be provided on the front pillar 3 or the side pillar (not shown).

In addition, the components in the above-described embodiments may be replaced with known components as appropriate without departing from the scope of the present invention, and the above-described modifications may be combined as appropriate.

Claims (10)

1. A vehicle body side portion structure is provided with:

side members provided at both ends of the floor portion in the vehicle width direction and extending in the vehicle front-rear direction;

a pillar extending upward from the side member and having a pillar outer provided on an outer side in the vehicle width direction;

a crush member provided on an inner side in a vehicle width direction with respect to the pillar outer, having a lower portion joined to the side member, and extending upward from the side member; and

and an impactor that is provided above the crush member, that is joined to the vehicle width direction inner side of the pillar outer, and that at least partially overlaps the crush member in the vertical direction.

2. The vehicle body side construction according to claim 1,

the crushing member includes a lower inclined portion inclined upward from the outside toward the inside in the vehicle width direction,

the lower end portion of the striker includes an upper inclined portion that is inclined upward from the outside toward the inside in the vehicle width direction and is connected to the lower inclined portion.

3. The vehicle body side construction according to claim 1 or 2,

the crushing member includes:

a lower inner wall disposed at a distance inward in the vehicle width direction with respect to the pillar outer; and

a lower side wall extending outward in the vehicle width direction from both sides in the vehicle front-rear direction of the lower inner wall and joined to the pillar outer,

the impactor is provided with:

an upper inner wall disposed at a distance inward in the vehicle width direction with respect to the pillar outer; and

an upper side wall extending outward in the vehicle width direction from both sides in the vehicle front-rear direction of the upper inner wall and joined to the pillar outer,

the upper portion of the lower inner wall and the upper portion of the lower side wall are joined to the lower portion of the upper inner wall and the lower portion of the upper side wall in a state of overlapping with each other.

4. The vehicle body side construction according to claim 1 or 2,

the crushing member integrally has:

a lower flange engaged with the edge beam; and

a side flange engaged with the pillar outer at a position lower than a portion connected with the impactor.

5. The vehicle body side construction according to claim 4,

the side member further includes a connecting member provided along a plane intersecting the vehicle longitudinal direction and connecting the inner surface of the side member to the lower flange of the crushing member.

6. The vehicle body side construction according to claim 5,

the side frame is formed in a closed cross-sectional configuration extending in the vehicle fore-and-aft direction,

the crushing member is inserted into the side sill through an opening provided in an upper surface of the side sill,

the lower flange engages an upwardly facing bottom surface of the inner surface of the sill,

the side flange is joined to an inner surface of the pillar outer across an inner surface of the side member facing inward in the vehicle width direction.

7. The vehicle body side construction according to claim 1 or 2,

the vehicle body side structure further includes a door beam provided to a door openably/closably provided in a door opening formed in at least one of the vehicle front-rear directions with respect to the pillar, the door beam being provided so as to straddle the door opening in the vehicle front-rear direction in a state where the door opening is closed,

the beam end of the door beam in the vehicle front-rear direction is disposed at a position that overlaps the striker in the up-down direction.

8. The vehicle body side construction according to claim 1 or 2,

two sets of the impactor and the crushing member are arranged at a spacing in the vehicle front-rear direction,

a webbing take-up device is disposed between the two sets.

9. The vehicle body side construction according to claim 1 or 2,

the impactor has a higher stiffness than the crushing member.

10. The vehicle body side construction according to claim 9,

the impactor is formed from a material having a greater sheet thickness than the crush member.

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